we envision high speed rail connecting san francisco, san diego. >> john: that will cost another 100 billion dollars. you're expecting private investors, private investors will be a part of the mix. have any come forward? >> not at this time, but there's every reason to believe that they will. >> the private money was always a joke because private money will invest in something where they can make a profit. there's no way this project is ever going to pay for itself. >> john: why does it happen? >> because it's visionary, john, very, very visionary. >> trains will ref revoluti revolutionize our infrastructure. >> john: trains are romantic. and like the amtrak trains. >> the amtrak trains are packed. >> john: they're packed? here is what it looked like recently when we taped. on average, amtrak's california train's filled just a third of their seats, but if we don't invest in trains, what's the mass transit alternative? new buses. this is now the fastest growing mass transit in america. why? >> because it's cheaper. >> john: buses don't get the big subsidies, but they're cheaper than